US11377003B2 - Suspension system, preferably driver seat - Google Patents

Suspension system, preferably driver seat Download PDF

Info

Publication number
US11377003B2
US11377003B2 US16/603,014 US201816603014A US11377003B2 US 11377003 B2 US11377003 B2 US 11377003B2 US 201816603014 A US201816603014 A US 201816603014A US 11377003 B2 US11377003 B2 US 11377003B2
Authority
US
United States
Prior art keywords
seat surface
frame
actuating element
suspension system
designed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active, expires
Application number
US16/603,014
Other languages
English (en)
Other versions
US20200031256A1 (en
Inventor
Max Werhahn
Peter Marienfeld
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ContiTech Vibration Control GmbH
Original Assignee
ContiTech Vibration Control GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ContiTech Vibration Control GmbH filed Critical ContiTech Vibration Control GmbH
Publication of US20200031256A1 publication Critical patent/US20200031256A1/en
Assigned to CONTITECH VIBRATION CONTROL GMBH reassignment CONTITECH VIBRATION CONTROL GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MARIENFELD, PETER, WERHAHN, MAX
Application granted granted Critical
Publication of US11377003B2 publication Critical patent/US11377003B2/en
Active legal-status Critical Current
Adjusted expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50—Seat suspension devices
    • B60N2/501—Seat suspension devices actively controlled suspension, e.g. electronic control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/02246—Electric motors therefor
    • B60N2/0232—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/0244—Non-manual adjustments, e.g. with electrical operation with logic circuits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/1605—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable characterised by the cinematic
    • B60N2/161—Rods
    • B60N2/162—Scissors-like structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/1635—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable characterised by the drive mechanism
    • B60N2/164—Linear actuator, e.g. screw mechanism
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50—Seat suspension devices
    • B60N2/502—Seat suspension devices attached to the base of the seat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50—Seat suspension devices
    • B60N2/505—Adjustable suspension including height adjustment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50—Seat suspension devices
    • B60N2/506—Seat guided by rods
    • B60N2/508—Scissors-like structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50—Seat suspension devices
    • B60N2/52—Seat suspension devices using fluid means
    • B60N2/525—Seat suspension devices using fluid means using gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2210/00—Sensor types, e.g. for passenger detection systems or for controlling seats
    • B60N2210/50—Inertial sensors

Definitions

  • the present invention relates to a suspension system, preferably a driver's seat, as claimed in the preamble of patent claim 1 and also to a vehicle comprising a suspension system of this kind as claimed in patent claim 15 .
  • the stationary suspension part as the suspension bottom part, is a seat frame which is rigidly connected to the body of the vehicle in the main excitation direction of the vibration, that is to say usually in the height direction.
  • the movable suspension part as the suspension top part, is the seat surface of the driver's seat which is movable in a vibratory manner in the height direction relative to the seat frame.
  • EP 2 921 342 A2 describes an apparatus for cushioning a suspension top part in at least one spatial direction in relation to a suspension bottom part which can move relative to said suspension top part and which can be employed, for example, in a vehicle seat.
  • the apparatus has, for cushioning purposes, a spring device in the form of a shock absorber which acts between the suspension top part and the suspension bottom part.
  • An actuating element is provided, by way of which a force can be bidirectionally introduced into the apparatus in the active direction of the spring device.
  • the actuating element can be actuated by means of a control device.
  • the actuating element has a drive, which is designed as a rotating field magnet, and a coupling rod, which is designed as a ball screw and can be driven by the drive.
  • the drive is fixedly arranged on the suspension top part or on the suspension bottom part and the coupling rod is arranged on a floating bearing cross connection, or vice versa.
  • the coupling rod is designed as a spring-action coupling rod having at least one spring element.
  • the spring device has a spring which is arranged between the suspension top part and the suspension bottom part and has a scissor-type device which connects the suspension top part to the suspension bottom part such that they can move in relation to one another.
  • At least one motion sensor is further provided, with which the movements in the at least one spatial direction of the suspension top part in relation to the suspension bottom part, which movements can be passed on to the control device, can be determined.
  • an acceleration sensor is provided, with which accelerations between the spring top part and the spring bottom part, which movements can be passed on to the control device, can be established.
  • this apparatus it is possible to bidirectionally realize active regulation in the active direction of the spring device by means of the actuating element, so that the actuating element firstly can make adjustments in the event of temporary deviations in the distance between the suspension bottom side and the suspension top side and secondly can actively intervene in the vibration isolation. This can increase the comfort of the driver, for example, when the apparatus of EP 2 921 342 A2 is used in a vehicle seat.
  • a particular actuating element specifically a drive which is designed as a rotating field magnet and has a coupling rod which is designed as a ball screw, is required for implementing the apparatus of EP 2 921 342 A2.
  • a further disadvantage is that high axial loads are always transmitted by means of the actuating element for structural reasons, and this can lead to high mechanical loading of the actuating element. This can lead to a reduced service life of the actuating element.
  • Capitalizing on the advantages of the apparatus of EP 2 921 342 A2 can further be interrupted owing to the breakdown of the actuating element, and this can reduce the comfort of the driver for example.
  • the replacement of a broken-down actuating element can also lead to interruption in use and also to material and assembly costs. If the service life of the actuating element should nevertheless be further increased, the actuating element would have to be configured to be more solid in order to be able to withstand the high axial loads for a longer period of time. However, this would lead to increased costs, to an increased space requirement and also to an increased weight, each of which would be disadvantageous.
  • An object of the present invention is to provide a suspension system, in particular a driver's seat, of the kind described at the outset, so that axial loads on the actuating element can be avoided or at least reduced.
  • a characteristic of the rotation speed in relation to the travel of the actuating element should be achieved. This should preferably be done using standardized elements as the actuating element.
  • the object is achieved by a suspension system having the features as claimed in claim 1 and also by a vehicle having the features as claimed in claim 15 .
  • Advantageous developments are described in the dependent claims.
  • the present invention relates to a suspension system, preferably a driver's seat, comprising a first suspension part, preferably a frame of the driving seat, a second suspension part, preferably a seat surface of the driver's seat, wherein the two suspension parts are movable relative to one another in at least one first spatial direction, preferably in the height direction.
  • the suspension system further has a kinematics system, preferably a scissor-type kinematics system, which is designed to connect the two suspension parts such that they are movable relative to one another at least in the first spatial direction.
  • the suspension system also has a spring device which is designed to support the static load of the second suspension part.
  • said static load can include the weight of a driver who is sitting on the second suspension part as the seat surface.
  • the spring device is preferably also designed to passively damp relative movement of the two suspension parts in relation to one another.
  • the spring device is preferably further or alternatively designed to define the vertical central position about which the suspension system is mounted such that it can vibrate.
  • the spring device is preferably additionally or alternatively designed to perform a function which returns said suspension system to the central position.
  • the spring device is preferably designed as an elastic spring arrangement, for example as a pneumatic spring or as a helical spring.
  • the suspension system has an actuating element which is designed to introduce a force bidirectionally between the two suspension parts and in this way to actively damp the relative movement of the two suspension parts in relation to one another.
  • the movement of the second suspension part such as a seat surface for example, is actively damped or actively isolated from the excitation on the first suspension part, such as cabin vibrations of a vehicle for example.
  • a suspension system of this kind can preferably be a driver's seat, but also any other suspension parts which are connected relative to one another in at least one first spatial direction and both have at least one passive and at least one active actuating element.
  • This can be, for example, a worktop, a hospital bed, a vehicle cabin, a measuring device or the like.
  • the suspension system according to the invention is characterized in that the actuating element has a bearing arrangement, preferably a ball bearing, which is arranged within the force flow between the two suspension parts in such a way that an axial load can be at least partially, preferably entirely, kept away from the driving axis of the actuating element.
  • This bearing arrangement can be of rigid or elastic design.
  • This bearing arrangement is preferably arranged within the actuating element, as far as possible directly at that point at which the relative movement within the actuating element can take place.
  • the actuating element has a motor, preferably an electric motor, a threaded nut, preferably a ball screw nut, and a spindle, wherein the motor is designed to drive the spindle, so that the threaded nut can be moved relative to the spindle, preferably in the first spatial direction, wherein the bearing arrangement is arranged between the motor and the spindle, wherein the motor is arranged on the first suspension part and the threaded nut is arranged on the second suspension part, or vice versa.
  • the threaded nut can be designed as a ball screw nut, as a roller screw nut or as a sliding screw nut.
  • the sliding screw nut can comprise metal and be designed with or without a coating.
  • a rotationally acting motor as is customary in ball screw drives, is preferably used here.
  • the use of an electric motor here is advantageous because electrical energy can usually be provided in a more simple and/or cleaner manner than, for example, pneumatic or hydraulic pressure.
  • the arrangement of the bearing arrangement between the motor and the spindle ensures that the above-described advantages of decoupling the axial forces can be implemented.
  • the motor and the spindle can be arranged on the first suspension part which, for example as the frame of a driver's seat, can be stationary in relation to the second suspension part which can be, for example, the seat surface of a driver's seat, to which seat surface the threaded nut can be connected.
  • the motor, together with the spindle can be arranged in a stationary manner on the frame, this usually being structurally more simple than the converse arrangement of these components.
  • the arrangement can also be performed conversely, so that the motor, together with the spindle, can move together with the seat surface of the driver's seat. This can increase the vibrating mass and in this way have a passive damping effect.
  • the actuating element can be oriented so as to act in the first spatial direction in which the relative movement which is to be actively damped can also occur. This can cause force transmission which is as direct as possible.
  • the actuating element can also be oriented so as to partially or entirely act in another spatial direction, such as so as to act perpendicularly in relation to the first spatial direction in particular, so that the relative movement between the two suspension parts can be achieved by means of a force transmission, for example by way of the kinematics system in the form of a scissor-type kinematics system. This can increase the design freedom for the suspension system.
  • the motor and the spindle are arranged in such a way that the motor can directly drive the spindle, wherein the motor and the spindle have a common rotation axis which is preferably oriented in the first spatial direction. This can simplify the implementation.
  • the actuating element is arranged outside the two suspension parts, preferably further parallel in relation to the two suspension parts.
  • installation space and, in particular, installation height between the two suspension parts can be saved.
  • the actuating element can be easier to access, for example for assembly, servicing, repair etc.
  • the actuating element has a motor, preferably an electric motor, a threaded nut, preferably a ball screw nut, and a spindle, wherein the motor is designed to drive the spindle nut, so that the spindle can be moved relative to the threaded nut, preferably in the first spatial direction, wherein the bearing arrangement is arranged within the force flow between the motor and the threaded nut, wherein the motor is arranged on the first suspension part and the spindle is arranged on the second suspension part, or vice versa.
  • the motor and the threaded nut are arranged in such a way that the motor can indirectly drive the threaded nut via a coupling element, preferably via a toothed belt, wherein the motor and the threaded nut have two different rotation axes which are preferably oriented parallel in relation to one another and particularly preferably further in the first spatial direction.
  • a coupling element preferably via a toothed belt
  • the motor and the threaded nut have two different rotation axes which are preferably oriented parallel in relation to one another and particularly preferably further in the first spatial direction.
  • the actuating element is arranged between the two suspension parts, wherein the actuating element is preferably further designed to introduce the force bidirectionally between the two suspension parts in the first spatial direction.
  • a compact arrangement can be created in this way, so that installation space outside the two suspension parts can be saved.
  • the actuating element can also be protected in this way.
  • the suspension system has an elastic damping element, preferably an elastomeric damping element, which is arranged between the spindle and the suspension part and is designed to passively damp the force flow.
  • an elastic damping element preferably an elastomeric damping element, which is arranged between the spindle and the suspension part and is designed to passively damp the force flow.
  • the suspension system has a control unit which is designed to control the actuating drive in such a way that the relative movement of the two suspension parts in relation to one another can be actively damped. Active damping and, in particular, regulation can be implemented in this way.
  • the suspension system has at least one position sensor which is designed to detect a position of the first suspension part relative to the second suspension part in at least the first spatial direction, or vice versa, wherein the position sensor is further designed to make the detected position available to the control unit.
  • the position of one of the suspension parts relative to the other suspension part can be detected in this way, so that a relative movement, which can be actively counteracted, can be derived from the change in the detected position.
  • the position sensor is designed to measure in absolute terms or in increments.
  • An absolute position measurement has the advantage of being able to use the position as an absolute value immediately after operation of the suspension system begins.
  • a sensor which measures in absolute terms is usually more expensive than a position sensor which measures in increments.
  • This has the disadvantage, firstly, of having to be referenced, for example, in relation to an end position or in relation to a central position in order to be able to derive an absolute value from the relative measurement of the incremental sensor.
  • the central position can be defined, for example, as the position of a load-free spindle since the static forces are absorbed by the spring device. In order to use an end position for referencing purposes, it would be possible, before use of the suspension system, to allow the actuating element to be driven into an end stop and to determine the position relative to this point.
  • the suspension system has at least one acceleration sensor which is designed to detect an acceleration of the first suspension part relative to the second suspension part in at least one spatial direction, preferably in the first spatial direction, or vice versa, wherein the acceleration sensor is further designed to make the detected acceleration available to the control unit.
  • the information relating to the acceleration can be used additionally or alternatively to an item of position information for implementing the active damping.
  • the acceleration of the first suspension part such as of the frame of a driver's seat for example, is preferably detected, so that vibrations can be kept away from the second suspension part, such as the seat surface of the driver's seat for example, by the active damping.
  • the suspension system has a plurality of acceleration sensors which are designed to detect a plurality of accelerations of the first suspension part relative to the second suspension part in a plurality of spatial directions, preferably in three spatial directions which are oriented perpendicularly in relation to one another, particularly preferably in the depth direction, in the width direction and in the height direction, or vice versa, wherein the acceleration sensors are further designed to make the detected accelerations available to the control unit.
  • the dynamics for example of the driver's cabin, can be detected by detecting the translations in the depth direction, in the width direction and in the height direction and also by the respective rotations, so that an as it were “global” change in height of the seat surface of the driver's seat can be determined and actively adjusted as a result. This can improve the effect of the regulation and further increase the comfort etc. of the driver.
  • the suspension system has at least one shifting device, preferably at least one horizontal shifting device, particularly preferably at least one horizontal rail system, which is designed so that
  • the comfort of the driver can be further increased by way of, for example, the distance of the seat surface of the driver's seat from the steering wheel being able to be changed.
  • This relative mobility for example in the depth direction, can be implemented, in this case, depending on the embodiment of the driver's seat, at the above-described different points between the seat surface and the body of the vehicle.
  • the present invention also relates to a vehicle comprising a suspension system as described above.
  • a vehicle comprising a suspension system as described above.
  • the suspension system can preferably be a driver's seat, so that the above-described properties and advantages can be used for increasing the comfort of the driver in a vehicle.
  • FIG. 1 shows a schematic basic illustration of passive and active damping of a suspension system in the form of a driver's seat
  • FIG. 2 shows a schematic perspective illustration of a suspension system according to the invention in the form of a driver's seat in a first embodiment
  • FIG. 3 shows a schematic perspective illustration of a suspension system according to the invention in the form of a driver's seat in a second embodiment
  • FIG. 4 shows a schematic perspective sectional illustration of a suspension system according to the invention in the form of a driver's seat in a third embodiment
  • FIG. 5 shows a schematic perspective sectional illustration of a suspension system according to the invention in the form of a driver's seat in a fourth embodiment
  • the description of the abovementioned figures is given in Cartesian coordinates with a longitudinal direction X, a transverse direction Y which is oriented perpendicularly in relation to the longitudinal direction X, and a vertical direction Z which is oriented perpendicularly both in relation to the longitudinal direction X and also in relation to the transverse direction Y.
  • the longitudinal direction X can also be referred to as the depth direction X
  • the transverse direction Y can also be referred to as the width direction Y
  • the vertical direction Z can also be referred to as the height direction Z.
  • FIG. 1 shows a schematic basic illustration of passive and active damping of a suspension system 1 in the form of a driver's seat 1 .
  • the driver's seat 1 has a frame 10 as a first stationary suspension part 10 , and a seat surface 11 as a second moving suspension part 11 , wherein “stationary” and “moving” are to be understood relative to one another.
  • the seat surface 11 is arranged above the frame 11 in the height direction Z and is connected to said frame by a kinematics system 12 in the form of a scissor-type kinematics system 12 .
  • the scissor-type kinematics system 12 is oriented in such a way that the two pairs of half-scissors can move in the depth direction X, so that the seat surface 11 can be raised or lowered in relation to the frame 10 in the height direction Z.
  • a spring device 13 in the form of an elastic spring arrangement 13 which is designed as a pneumatic spring 13 , is further arranged between the seat surface 11 and the frame 10 and also between the pair of half-scissors of the scissor-type kinematics system 12 .
  • the pneumatic spring 13 serves to absorb the static forces from the seat surface 11 onto the frame 10 and is able to insulate vibrations from the frame 10 in the direction of the seat surface 11 to a specific extent and also within a low-frequency vibration range. Furthermore, the pneumatic spring 13 has a restoring effect on the relative movement in the event of a deflection out of the central position and therefore assumes the desired central position in the medium term.
  • an actuating element 2 is further provided, which actuating element is arranged parallel in relation to the pneumatic spring 13 and can act either directly or indirectly by means of the scissor-type kinematics system 12 in the height direction Z. Vibrations which can be transmitted from the frame 10 to the seat surface 11 can additionally be actively damped in this way.
  • the actuating element 2 is actuated and regulated by a control unit 3 .
  • a position sensor 4 is provided, which position sensor is arranged on the seat surface 11 in such a way that the position sensor 4 can detect a vertical position Z 1 of the seat surface 11 relative to a vertical position Z 2 of the frame 10 .
  • a movement of the seat surface 11 relative to the frame 10 can also be deduced from this position Z 1 or from the change in the position Z 1 , and the speed of the relative movement can also be determined from the extent of the change in position.
  • the frame 10 of the driver's seat 1 further has an acceleration sensor 5 which can detect the acceleration of the frame 10 in the height direction Z, so that this information can also be taken into account in the regulation of the control unit 3 .
  • FIG. 2 shows a schematic perspective illustration of a suspension system 1 according to the invention in the form of a driver's seat 1 in a first embodiment.
  • the actuating element 2 has a first actuating element holder 20 by way of which the actuating element 2 is mounted in a stationary manner on the frame 10 on one side.
  • the frame 10 is, for its part, arranged in a stationary manner on a substrate 6 , such as the body 6 of a vehicle in this case.
  • the actuating element 2 further has a second actuating element holder 21 by way of which the actuating element 2 is mounted in a stationary manner on the seat surface 11 on the other side.
  • the actuating element 2 is mounted on the frame 10 and on the seat surface 11 from the rear in the depth direction X, so that the actuating element 2 can be used and, in particular retrofitted, in this embodiment, without having to change the structure of the driver's seat 1 itself.
  • An electric motor 22 is mounted in a stationary manner on the first actuating element holder 20 of the frame 10 and is connected to a spindle 29 of a ball screw drive in such a way that the electric motor 22 can directly rotationally drive the spindle 29 .
  • the electric motor 22 and the spindle 29 have a common rotation axis which is oriented in the height direction Z and, in this exemplary embodiment, represents the driving axis of the actuating element 2 .
  • a threaded nut 25 is arranged on the spindle 29 and is connected in a stationary manner to the second actuating element holder 21 . If the spindle 29 is now rotationally driven by means of the electric motor 22 , the seat surface 11 can be moved relative to the frame 10 in the height direction Z by means of the movement of the ball screw nut 25 , so that active damping of vibrations can be implemented.
  • the spindle 29 is mounted in a rotationally rotatable manner directly on the first actuating element holder 20 by means of a bearing arrangement 28 in the form of a ball bearing 28 , so that the spindle 29 can execute the rotational movement of the electric motor 22 , but at the same time axial forces can be absorbed by the seat surface 10 from the ball bearing 28 and therefore can be kept away from the electric motor 22 . This can relieve the electric motor 22 of loading and protect said electric motor.
  • a linear characteristic can further be achieved between the rotation speed of the electric motor 22 in relation to the travel of the actuating element 2 in the height direction Z, and this can improve the accuracy of regulation and therefore increase the quality and the efficacy of the vibration damping in relation to known active damping operations of driver's seats 1 .
  • this can further be achieved by standardized elements, such as the electric motor 22 , the spindle 29 and the ball screw nut 25 , in combination with a ball bearing 28 , and this can simplify the implementation and keep the costs of implementation of this advantage low.
  • FIG. 3 shows a schematic perspective illustration of a suspension system 1 according to the invention in the form of a driver's seat 1 in a second embodiment.
  • This second embodiment differs from the first embodiment only in that, in this case, the electric motor 22 with the spindle 29 is mounted in a stationary manner on the seat surface 11 by means of the first actuating element holder 20 , and the ball screw nut 25 is mounted in a stationary manner on the frame 10 by means of the second actuating element holder 21 .
  • the same properties as in the first exemplary embodiment can be achieved in this way.
  • the mass of the seat surface 11 to be damped can further be increased, and this can have a vibration damping effect.
  • FIG. 4 shows a schematic perspective sectional illustration of a suspension system 1 according to the invention in the form of a driver's seat 1 in a third embodiment.
  • FIG. 5 shows a schematic perspective sectional illustration of a suspension system 1 according to the invention in the form of a driver's seat 1 in a fourth embodiment.
  • the actuating element 2 is arranged between the frame 10 and the seat surface 11 in the height direction Z, so that no installation space has to be used for the actuating element outside the basic dimensions of the driver's seat 1 .
  • the electric motor 22 and the spindle 29 are arranged next to one another in order to achieve as large a stroke as possible between the frame 10 and the seat surface 11 in the height direction Z.
  • the driving axis of the actuating element 2 which corresponds to the axis of the motor 22 , is therefore arranged parallel in relation to the axis of the spindle 29 in both of these exemplary embodiments.
  • the electric motor 22 is connected in a stationary manner to the lower region of the scissor-type kinematics system 12 by means of a first actuating element holder 20 in the form of a trough 20 , and is arranged approximately below the pneumatic spring 13 . At its upper end, the electric motor 22 has a toothed disk 23 which can be rotationally driven by the electric motor 22 .
  • the ball screw nut 25 is arranged on the first actuating element holder 20 , that is to say on the trough 20 , parallel in relation to the electric motor 22 and offset in relation to said electric motor in the depth direction X.
  • the ball screw nut 25 is connected in a stationary manner to a hollow shaft 27 and arranged above the hollow shaft 27 in the height direction Z.
  • the hollow shaft 27 is connected in a rotationally rotatable manner to the trough 20 via the ball bearing 28 , so that, in both of these exemplary embodiments, axial forces which can act on the ball screw nut 25 can be absorbed by the trough 20 via the ball bearing 28 .
  • a toothed disk 26 of the hollow shaft 27 is arranged in a stationary manner around the hollow shaft 27 .
  • the two number disks 23 , 26 are connected by means of a toothed belt 24 as a coupling element 24 , so that a rotational movement of the electric motor 22 can be rotationally transmitted to the ball screw nut 25 via the toothed belt 24 .
  • the spindle 29 is arranged within the ball screw nut 25 , so that the spindle 29 can be raised and lowered in the height direction Z by the rotation of the ball screw nut 25 .
  • the spindle 29 is rigidly connected to the seat surface 11 via the second actuating element holder 21 in the form of a bracket 21 .
  • an elastic damping element 15 in the form of an elastomeric damping element 15 is arranged between the bracket 21 and the seat surface 11 in order to provide passive damping at this point too.
  • a horizontal shifting device 14 in the form of a horizontal rail system 14 is in each case provided between the scissor-type kinematics system 12 and the frame 10 , so that the seat surface 11 , together with the scissor-type kinematics system 12 and the actuating element 2 , can be moved relative to the frame 10 in the depth direction X.
  • a driver can adjust the driver's seat 1 relative to the steering wheel in this way.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)
US16/603,014 2017-04-06 2018-02-05 Suspension system, preferably driver seat Active 2039-01-28 US11377003B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102017205902.8A DE102017205902A1 (de) 2017-04-06 2017-04-06 Federungssystem, vorzugsweise Fahrersitz
DE102017205902.8 2017-04-06
PCT/EP2018/052753 WO2018184752A1 (de) 2017-04-06 2018-02-05 Federungssystem, vorzugsweise fahrersitz

Publications (2)

Publication Number Publication Date
US20200031256A1 US20200031256A1 (en) 2020-01-30
US11377003B2 true US11377003B2 (en) 2022-07-05

Family

ID=61198829

Family Applications (1)

Application Number Title Priority Date Filing Date
US16/603,014 Active 2039-01-28 US11377003B2 (en) 2017-04-06 2018-02-05 Suspension system, preferably driver seat

Country Status (5)

Country Link
US (1) US11377003B2 (de)
EP (1) EP3606787B1 (de)
CN (1) CN110431041A (de)
DE (1) DE102017205902A1 (de)
WO (1) WO2018184752A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018207563A1 (de) * 2018-05-16 2019-11-21 Volkswagen Aktiengesellschaft Anordnung einer vom Fahrzeugsitz entkoppelten Höhenkompensationsvorrichtung zwischen einem Fahrzeugsitz und einer Karosserie mit einer von einem Linearantrieb angesteuerten Sitzmechanik
US10829009B2 (en) * 2018-06-27 2020-11-10 Faurecia Automotive Seating, Llc Vehicle seat height adjustment mechanism
US10953771B2 (en) * 2019-03-28 2021-03-23 Ford Global Technologies, Llc Seat rotation position sensor
DE102019126654A1 (de) * 2019-10-02 2021-04-08 Faurecia Autositze Gmbh Höhenverstelleinrichtung für einen Fahrzeugsitz sowie Fahrzeugsitz
EP3848613A1 (de) 2020-01-10 2021-07-14 Siemens Aktiengesellschaft An einer rahmenkonstruktion elastisch befestigte elektrische maschine
CN111746359B (zh) * 2020-07-31 2024-06-21 吉林大学 集成有身高和体重参数调整功能的座椅非线性悬架
CN112026605B (zh) * 2020-09-18 2025-03-28 深磁科技(深圳)有限公司 减振装置、减振系统和车辆座椅
WO2022099168A1 (en) * 2020-11-09 2022-05-12 Sears Manufacturing Co. Active suspension system
DE102020132445B4 (de) * 2020-12-07 2025-02-20 Saf-Holland Gmbh Achslasterfassungssystem, Achssystem und Nutzfahrzeug mit einem Achslasterfassungssystem
CN113352968B (zh) * 2021-07-15 2022-12-02 太原理工大学 一种主动式座椅减振系统
CN121066611B (zh) * 2025-11-05 2026-02-13 湖南山河矿岩装备有限责任公司 一种掘进钻车一体式驾驶室

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2707184A1 (de) 1977-02-18 1978-08-24 Bremshey Ag Fahrzeugsitz
EP0002332A1 (de) 1977-11-29 1979-06-13 Uop Inc. Verbesserungen an oder betreffend Fahrzeugsitzfederungen
US4382573A (en) * 1979-11-27 1983-05-10 Sable Freres International Vehicle seat support with incorporated device for damping longitudinal acceleration
US6120082A (en) * 1999-03-09 2000-09-19 Navistar International Transportation Corp. Integrated active seat suspension and seat lockup device
US20060237885A1 (en) 2003-03-04 2006-10-26 Baultar I.D Inc. Active seat suspension
US20060278805A1 (en) * 2005-05-13 2006-12-14 Erwin Haller Device and method for suspension of a vehicle seat by means of additional volumes
US20110284713A1 (en) * 2010-05-20 2011-11-24 Keiper Gmbh & Co. Kg Vehicle Seat
US8585004B1 (en) * 2009-01-26 2013-11-19 Atwood Mobile Products Llc Air ride seat pedestal with independent height adjustment
DE102013110927A1 (de) 2013-10-01 2015-04-02 Grammer Aktiengesellschaft Fahrzeugsitz oder Fahrzeugkabine mit einer Federungseinrichtung und Nutzkraftfahrzeug
US20150232005A1 (en) 2014-02-14 2015-08-20 Grammer Ag Device for damping an upper suspension part in at least one spatial direction with respect to a lower suspension part movable relative thereto
US20150232004A1 (en) * 2014-02-20 2015-08-20 Grammer Ag Device for damping an upper suspension part in at least one spatial direction with respect to a lower suspension part movable relative thereto
US20160082870A1 (en) * 2013-04-25 2016-03-24 Delta Tooling Co., Ltd. Seat suspension

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4685731A (en) * 1985-10-28 1987-08-11 Migut Gary J Tank crew seat structure
US5582385A (en) * 1995-04-27 1996-12-10 The Lubrizol Corporation Method for controlling motion using an adjustable damper
US8095268B2 (en) * 2004-10-29 2012-01-10 Bose Corporation Active suspending
EP1864854B1 (de) * 2006-06-06 2013-05-22 Deere & Company Aufhängungssystem mit aktiver Vibrationskompensation

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2707184A1 (de) 1977-02-18 1978-08-24 Bremshey Ag Fahrzeugsitz
EP0002332A1 (de) 1977-11-29 1979-06-13 Uop Inc. Verbesserungen an oder betreffend Fahrzeugsitzfederungen
US4198025A (en) 1977-11-29 1980-04-15 Uop Inc. Vehicle seats
US4382573A (en) * 1979-11-27 1983-05-10 Sable Freres International Vehicle seat support with incorporated device for damping longitudinal acceleration
US6120082A (en) * 1999-03-09 2000-09-19 Navistar International Transportation Corp. Integrated active seat suspension and seat lockup device
US20060237885A1 (en) 2003-03-04 2006-10-26 Baultar I.D Inc. Active seat suspension
US20060278805A1 (en) * 2005-05-13 2006-12-14 Erwin Haller Device and method for suspension of a vehicle seat by means of additional volumes
US8585004B1 (en) * 2009-01-26 2013-11-19 Atwood Mobile Products Llc Air ride seat pedestal with independent height adjustment
US20110284713A1 (en) * 2010-05-20 2011-11-24 Keiper Gmbh & Co. Kg Vehicle Seat
US20160082870A1 (en) * 2013-04-25 2016-03-24 Delta Tooling Co., Ltd. Seat suspension
DE102013110927A1 (de) 2013-10-01 2015-04-02 Grammer Aktiengesellschaft Fahrzeugsitz oder Fahrzeugkabine mit einer Federungseinrichtung und Nutzkraftfahrzeug
US20160207430A1 (en) 2013-10-01 2016-07-21 Grammer Ag Vehicle seat or vehicle cab with a suspension system, and utility vehicle
US20150232005A1 (en) 2014-02-14 2015-08-20 Grammer Ag Device for damping an upper suspension part in at least one spatial direction with respect to a lower suspension part movable relative thereto
EP2921342A2 (de) 2014-02-14 2015-09-23 Grammer Ag Vorrichtung zum Abfedern eines Federungsoberteils in wenigstens einer Raumrichtung gegenüber einem relativ dazu bewegbaren Federungsunterteil
US20150232004A1 (en) * 2014-02-20 2015-08-20 Grammer Ag Device for damping an upper suspension part in at least one spatial direction with respect to a lower suspension part movable relative thereto

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Search Report dated May 30, 2018 of International Application PCT/EP2018/052753 on which this application is based.

Also Published As

Publication number Publication date
DE102017205902A1 (de) 2018-10-11
EP3606787B1 (de) 2021-06-09
CN110431041A (zh) 2019-11-08
US20200031256A1 (en) 2020-01-30
EP3606787A1 (de) 2020-02-12
WO2018184752A1 (de) 2018-10-11

Similar Documents

Publication Publication Date Title
US11377003B2 (en) Suspension system, preferably driver seat
US12115827B2 (en) Motion control system
USRE50127E1 (en) Operator ride enhancement system
US8109371B2 (en) Damper
US20060237885A1 (en) Active seat suspension
KR101554717B1 (ko) 낮은 고유 진동수를 가지는 진동 절연 시스템
KR101640622B1 (ko) 롤 보상 기능을 포함한 서스펜션 장치
KR20110037980A (ko) 액티브 와트 링키지를 구비한 서스펜션 장치
US7665585B2 (en) Vehicle suspension system and method for operating
EP2247491B1 (de) Fahrerhauslagerungsanordnung und fahrerhauslagerung
JP5369662B2 (ja) 車両用サスペンション装置、電動モータの制御方法
JP4329670B2 (ja) 車両懸架装置
CN113492889B (zh) 用于车辆的液压气动的弹性支撑装置
JP5689624B2 (ja) 鉄道車両に搭載されるアクチュエータ
JP2025184260A (ja) サスペンション装置の制御方法、サスペンション装置の制御装置及びサスペンション装置の制御システム
EP3492333B1 (de) Mit einer queraufhängung ausgestattetes schienenfahrzeug und aufhängungsverfahren
JP2006001313A (ja) インホイールモータシステム
HK1164411B (en) Operator ride enhancement system

Legal Events

Date Code Title Description
FEPP Fee payment procedure

Free format text: ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: BIG.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION

AS Assignment

Owner name: CONTITECH VIBRATION CONTROL GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WERHAHN, MAX;MARIENFELD, PETER;SIGNING DATES FROM 20210823 TO 20210825;REEL/FRAME:057325/0259

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER

STPP Information on status: patent application and granting procedure in general

Free format text: NOTICE OF ALLOWANCE MAILED -- APPLICATION RECEIVED IN OFFICE OF PUBLICATIONS

STPP Information on status: patent application and granting procedure in general

Free format text: PUBLICATIONS -- ISSUE FEE PAYMENT RECEIVED

STPP Information on status: patent application and granting procedure in general

Free format text: PUBLICATIONS -- ISSUE FEE PAYMENT VERIFIED

STCF Information on status: patent grant

Free format text: PATENTED CASE

MAFP Maintenance fee payment

Free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Year of fee payment: 4